OpenAI’s Daybreak uses Codex Security to identify risky attack paths

OpenAI Daybreak is the company’s cybersecurity initiative focused on building AI-assisted software defense into the development process from the start. It combines OpenAI models, Codex Security, and cyber-focused GPT-5.5 variants to help organizations identify, validate, and prioritize software vulnerabilities. How Daybreak identifies exploitable vulnerabilities Daybreak builds editable threat models from a company’s code repository, analyzes realistic attack paths, validates likely vulnerabilit